2 * Copyright (c) 2018. Developed by Hedgecode.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 package org.hedgecode.chess.uci;
19 import java.io.InputStream;
20 import java.io.OutputStream;
21 import java.io.PrintWriter;
24 * External UCI Engine.
26 * @author Dmitry Samoshin aka gotty
28 public class ExternalEngine implements Engine {
30 private static final String COMMAND_FORMAT = "%s %s";
32 private Transmitter<String> transmitter;
33 private PrintWriter engineWriter;
35 ExternalEngine(InputStream input, OutputStream output) {
36 transmitter = new ExternalEngineTransmitter(input);
37 engineWriter = new PrintWriter(output, true);
40 public Transmitter<String> transmitter() {
44 private void write(String command) {
45 engineWriter.println(command);
48 private String format(String name, String params) {
50 COMMAND_FORMAT, name, params
62 public void debug(DebugMode mode) {
65 UCIConstants.DEBUG, mode.value()
71 public void isReady() {
80 UCIConstants.GO // todo: + params
92 public void ponderhit() {
94 UCIConstants.PONDER_HIT